Coil.



A. VOEGTLE, H. C. LEA & R. H. VOEGTLE. OOIL.

nm.mu1on r1um nun: 11, um.

Patented Oct. 18, 191.0.

NITED PATENT OFFICE.

ANTON VOEGTLE, HARRY c. man, AND RICHARD H. VOEG'ILE, O'F SHARPBRG, IEINNSYLVANIA.

GOIL.

Specification of Letters Patent.

Patented O'Ct. 18, 1910.

Applicafion filed Inne 1-7, 1909. Seriell N0. 502,796.

T0 all whom z't mag concern:

Be it known that We, ANTON VOEGTLE, HARRY C. LEA, and RIOHRD'H. VOEGTLE, cifii zens 0f the United Stabes of America, residing ab Sharpsburg, in the county of Allegheny and State 0f Pennsylvania, have invented certain new and useful Improvements in Coils, 0f which the following is a .specification, reference being had therein t0 the accompanying drawing.

This invention relates to coils, anti more particularly to inductive resistance am coi1s.

The prirnary object of the invention is t0 Provide a noiseless non-heating coi1 that Will not consume more than two kiloWat-ts per hour when used with a five-eighth sarbon on from one-hundred to one-hundred and twenty-five volts, sixty to one-hundred and thirty-three cycles, this amount being less than used by the same arc with a rheostat.

Another object of this invention is t0 pro viele a c0il wherein a complet e circuit of iron is employed, and by using taps to cut out the required number 0f turns in the winding 130 gb difl'erent and proper voltage, instead of raising and lowering the c0il, we secure greater econ0my.

We attain the above objects by a coi1 Which is wound with tw0 N0. eight wires paralleli1ig each other, which Will carry sixty amperes witho-ut noiSe and heating, the coil being provided with eight taps 130 regulate the voltage. The coil is built of three layers of twoNo. eight wires, thirtythree turns to the 1ayer, double c0tton Covered wire being used. The iron forming the body of the coi1 is larninated, and insulated With one-eighth fiber and fish pape1, the whole coil being compact and occupies a comparatively small space The detail construction 0f the coil Will be hereinafter considered and then c1aimed, and reference will now be had to the draw ing forming a art 0f this specification, wherein there is 11lustrated a, preferred embodiment of the invention, but it is to be understo'od that the structural elements thereof can be varied or changed as to the size, shape and manner of assembla.ge without departing from the spirit of the invention.

In the drawings: Figure 1 is a front elevation of a coil consucted in accordance With our invention, Fig. 2 is a side el vaticn V of the Same partl'y bro'ken mvay a;n d pa=nt ly in snacti'0'n, Fig. 8 is a h01120nta1 Isctional view 0f the c0il. Fig. & is a front elevation of 0ne of the frames, und Fig. 5 is a'n end view thereof.

Our c0il is constructed of a rectangular laminated body consisting of a series of rectangular frames l, each frame comprising vertical flat plates 2 and 3, a flat top p1ate 4, and a fiat bot-tom plate 5, these plates being made 0f iron of high efficiency, preferably N0. 29nine gage. The p1ates are arranged Wih the inner ends of the pla,tes 4 and 5 bearing against the inner edges of the vertical plates 2 and 8, while the opposite ends 0f the plates 4L and 5 overlap the ends of the vertica1 plates 2 and 3.

The vertieal p1ates 2 forming 011e side 0f the c0i1 body have the e'xposed sides thereof covered with insulation 5, zind the vertical edges and corners formed by the plates 2 are additionally insulated, aus at 6. The plates are then wrapped with three layers of wire 7, each layer being insulated from the other, as ab S. The layers of Wire are provided with equally spaoed connections 9' for leadingin wires 10, the connections being used t0 cut 0ut the required 'number 0f turns in the wires to obtain the required voltage. The p1ates 3 forming the ot-her half of the c0il are similarly insulated and wrapped.

The.top plates 4 and the upper ends 0f the vertical pla'tes 2 and 3 are covered with insulation 11 and horizontally wrapped with what is known as torpedo twine, as'at 12, and transversely wrapped with torpedo twine as at 13, thus binding the plates 4; and ti1e upper ends of the plates. 2 and 3 t-ogether.

The plates 5 und the lower ends of the plates 2 and 3 are covered with insulation 14 ancl horizontally wrapped With torpedo twine, as at 15, and transversely wrapped with torpedo twine, as at 16, the horizontal w'rapping of torpedo twine 15 maintaining legs 01 supports 17 in engagement with the lower end of the coi1, these legs being pre-ferably made of ber or a similar non-conductive materia].

Having now described 0ur invention what we claim as new, is:

An inductance coil comprising a rectangular laminatted core consistingof a series of rectn ula1 frmh, 'ach eiflpriSing vertical p abes, a top plate sind a bottom plante, the said lates forming vertical members, a top mem er and a bottom membei of the core, insulation surrounding each of the verti ca1 members intermediate the ends there'of la yers of insulated wire wra ped upon seid vertieal members, eaoh layer in insulated from the other, connections carr1ed by the insulabed wire, insulation covering the t0p member and the upper ends of the verbical members, means for binding said insulation in position, insulation covering the bot-tom 

